Beefy Boxes and Bandwidth Generously Provided by pair Networks
go ahead... be a heretic

HTTP::DAV circular references problem solved

by cosimo (Hermit)
on Aug 05, 2008 at 16:18 UTC ( #702405=perlnews: print w/replies, xml ) Need Help??

Last week I wrote on use.perl about a quite big memory "leak" problem I was experiencing with HTTP::DAV.

Well, "leak" as in "big circular references" between different objects. I think I finally managed to solve it after some days of struggling, trying to write awkward destructors and other debugging pains.

It turned out the solution was simple. Just using Scalar::Util::weaken() on the "hot" back references. The problematic references were between HTTP::DAV and HTTP::DAV::Resource and between HTTP::DAV::Resource and HTTP::DAV::ResourceList.

I'm using HTTP::DAV to export hundreds of thousands of images in many different sizes to some mod_dav-enabled static servers for, well, static serving.
For this I needed the export tool to work for at least 2 days continuously, talking to 3 different servers, and all of this without problems... :-)

Now it seems to work properly! The updated CPAN version will be out soon, I hope.

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: perlnews [id://702405]
[Corion]: A good Monday to everybody!
[Discipulus]: good morning Corion and all monks!!

How do I use this? | Other CB clients
Other Users?
Others examining the Monastery: (7)
As of 2017-03-27 07:12 GMT
Find Nodes?
    Voting Booth?
    Should Pluto Get Its Planethood Back?

    Results (316 votes). Check out past polls.